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Spindles | Series 12 Tool Post Grinders

Dumore interchangable spindles for Series 12 Tool Post Grinders handle a wide range of tool room and production grinding applications.

Spindle Adaptor Kit
Use of the 12” External Spindle (889-0011) on Series 12 Tool Post Grinders also requires the Series 12 Spindle Adaptor Kit (858-0034), not included with the spindle - sold separately (see below).

8” Internal Spindle

Internal grinding to 8" depth (10" for holes larger than the 3" spindle diameter). 1 3/8" diameter, with 1/2" bore diameter grinding wheels up to 5" wheel diameter, 3/4" wheel thickness. 8,000 rpm maximum speed.
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Tool Post Grinder 16” Internal Spindle | Dumore Series 12 Tool Post Grinders
16” Internal Spindle

Internal grinding to 16" depth (18" for holes larger than the 3" spindle diameter). 1 3/8" diameter, with 1/2" bore diameter grinding wheels up to 5" wheel diameter, 3/4" wheel thickness. 8,000 rpm maximum speed.
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Tool Post Grinder 8” External Spindle | Dumore Series 12 Tool Post Grinders
8” External Spindle

External grinding with 3/4" bore diameter grinding wheels, up to 8" wheel diameter, 7/8" wheel thickness. 8,000 rpm maximum speed.
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Tool Post Grinder 12” External Spindle | Dumore Series 12 Tool Post Grinders
12” External Spindle

External grinding with 1 1/4" bore diameter grinding wheels, up to 12" wheel diameter, 1 1/4" wheel thickness. 4,000 rpm maximum speed. Series 12 Spindle Adapter Kit required - sold separately.
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Tool Post Grinder Spindle Adaptor Kit | Dumore Series 12 Tool Post Grinders
Series 12 Spindle Adapter Kit

Required with the 12” External Spindle (sold separately) when used with Series 12 Tool Post Grinders.
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